openssl : Afficher la version installée

$ openssl version
OpenSSL 0.9.8o 01 Jun 2010

$ openssl version -a
OpenSSL 0.9.8o 01 Jun 2010
built on: Mon Feb 11 21:27:58 UTC 2013
platform: debian-i386-i686/cmov
options:  bn(64,32) md2(int) rc4(idx,int) des(ptr,risc1,16,long) blowfish(idx)
compiler: gcc -fPIC -DOPENSSL_PIC -DZLIB -DOPENSSL_THREADS -D_REENTRANT -DDSO_DLFCN -DHAVE_DLFCN_H -DL_ENDIAN -DTERMIO -O3 -march=i686 -Wa,--noexecstack -g -Wall -DOPENSSL_BN_ASM_PART_WORDS -DOPENSSL_IA32_SSE2 -DSHA1_ASM -DMD5_ASM -DRMD160_ASM -DAES_ASM
OPENSSLDIR: "/usr/lib/ssl"
$